org.checkerframework.checker.calledmethods.qual.CalledMethods Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of checker Show documentation

The Checker Framework enhances Java's type system to make it more powerful and useful. This lets software developers detect and prevent errors in their Java programs. The Checker Framework includes compiler plug-ins ("checkers") that find bugs or verify their absence. It also permits you to write your own compiler plug-ins.

There is a newer version: 3.44.0

Show newest version

package org.checkerframework.checker.calledmethods.qual;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.checkerframework.framework.qual.DefaultQualifierInHierarchy;
import org.checkerframework.framework.qual.SubtypeOf;

/**
 * If an expression has type {@code @CalledMethods({"m1", "m2"})}, then methods {@code m1} and
 * {@code m2} have definitely been called on its value. Other methods might or might not have been
 * called. "Been called" is defined as having been invoked: a method has "been called" even if it
 * might never return or might throw an exception.
 *
 * The subtyping relationship is:
 *
 * 
{@code @CalledMethods({"m1", "m2", "m3"}) <: @CalledMethods({"m1", "m2"})}
 *
 * @checker_framework.manual #called-methods-checker Called Methods Checker
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
@SubtypeOf({})
@DefaultQualifierInHierarchy
public @interface CalledMethods {
  /**
   * Methods that have definitely been called on the expression whose type is annotated.
   *
   * @return methods that have definitely been called
   */
  public String[] value() default {};
}